Vivaldi Antenna for UWB Sensor Networks

In this paper, the Vivaldi antenna designed for ultra-wideband (UWB) sensor networks by exponential curves is presented. Manufactured antennas are used for through-wall measurements. The article describes the design and optimization of the antenna, antenna measurements using the network vector analyser and pulse radar. Measured results are compared with simulated results. The antenna is also compared with commercially manufactured antennas used in the above mentioned applications. The designed Vivaldi antenna is printed on ARLON 600 substrate and operates in the frequency band from 0.810 GHz up to more than 12 GHz. Experimental results show good agreement with the simulated performance